<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>处理用户输入</title>
    <script src="./vue.js"></script>
</head>
<body>
    <div id="app-5">
        <p>{{message}}</p>
        <button v-on:click="reverseMessage">逆转消息</button>
    </div>
</body>
<script>
    var app5 = new Vue({
        el: '#app-5',
        data: {
            message: 'Hello World!'
        },
        methods: {
            reverseMessage: function(){
                let str = this.message.split('').reverse().join('')
                this.message = str;
            }
        }
    })
</script>
</html>